Mysterious spheres in Costa Rica.

I remember reading about these spheres a couple of years ago but never really looked into it. Now some more have come to light and have rekindled my
interest.
Some of these are upto 16 tons and the blocks that they were sculpted from had been moved a large distance from the mountains, unless of course they
were sculpted in the mountains and just rolled downhill.

Obviously lots of different theory's regarding the spheres so ive tried to put together enough information from varying sources for you to look
over.

It is believed, based upon contextual information, that the spheres are to product of the Diquis culture, during their period of from 500 CE to
700 CE (AD). However, as these artifacts are of stone, and there is the possibility of relocation, and other environmental factors, proper dating for
their creation is somewhat speculative. There are others who speculate that the age of the spheres extends back as far as 4,000 years and the products
of a much older culture

.

"The best spheres are perhaps the finest examples of precision stone carving in the ancient world." The maximum circumference error in one
6-foot, 7-inch diameter sphere in only 0.5 inch, or 0.2%

Whatever "mystery" exists has more to do with loss of information due to the destruction of the balls and their archaeological contexts than
lost continents, ancient astronauts, or transoceanic voyages.
Hundreds of stone balls have been documented in Costa Rica, ranging in size from a few centimeters to over two meters in diameter. Almost all of them
are made of granodiorite, a hard, igneous stone. These objects are not natural in origin, unlike the stone balls in Jalisco, Mexico that were
described in a 1965 National Geographic article. Rather, they are monolithic sculptures made by human hands.

Many of the balls were found to be in alignments, consisting of straight and curved lines, as well as triangles and parallelograms. One group of
four balls was found to be arranged in a line oriented to magnetic north. This has led to speculation that they may have been arranged by people
familiar with the use of magnetic compasses, or astronomical alignments. Unfortunately, all but a few of these alignments were destroyed when the
balls were moved from their original locations, so measurements made almost fifty years ago cannot be checked for accuracy. Many of the balls, some of
them in alignments, were found on top of low mounds.

Fascinating monoliths, what was their purpose, how old are they and who made them? Were they religious totems, astronomical markers or signs of wealth
or prestige among the culture that made them?

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